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 Slide 1 : MATH HOILDAY HOMEWORK
 Slide 2 : INTRODUTION Zero, written 0, is both a number and the numerical digit used to represent that number in numerals. It plays a central role in mathematics as the additive identity of the integers, real numbers, and many other algebraic structures. As a digit, 0 is used as a placeholder in place value systems. In the English language, 0 may be called zero, nought or (US) naught (both pronounced /'n(?t)/, nil, or "o". Informal or slang terms for zero include zilch and zip. Ought or aught (both pronounced /'(?t)/, have also been used.
 Slide 3 : AS A NUMBER 0 is the integer immediately preceding 1. In most cultures, 0 was identified before the idea of negative things that go lower than zero was accepted. Zero is an even number, because it is divisible by 2. 0 is neither positive nor negative. By some definitions 0 is also a natural number, and then the only natural number not to be positive.[citation needed] Zero is a number which quantifies a count or an amount of null size. The value, or number, zero is not the same as the digit zero, used in numeral systems using positional notation. Successive positions of digits have higher weights, so inside a numeral the digit zero is used to skip a position and give appropriate weights to the preceding and following digits. A zero digit is not always necessary in a positional number system, for example, in the number 02. In some instances, a leading zero may be used to distinguish a number.
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